RHINEBECK, N.Y. -- A Rhinebeck man was killed Sunday in a one-car crash on Rhinecliff Road.

Dillon J. VanWagner, 21, of Rhinebeck, was driving a 2013 Dodge Dart southbound on Rhinecliff Road at about 6:46 p.m. when the vehicle went off the right side of the roadway near Orchard Drive, struck a tree and overturned, according to the Dutchess County Sheriff's Office.

VanWagner, who was the sole occupant in the vehicle, was pronounced dead at the scene, the Sheriff's Office said in a news release.

The accident was still under investigation by members of the Dutchess County Sheriff's Office crash investigation unit, however authorities said a preliminary investigation revealed that speed and possible alcohol use were contributing factors to the crash.